WeatherFlow Tempest UDP Reference

Change Log Since 119

hub_status

Added Radio Network ID to the radio_status field

UDP Basics

The WeatherFlow Smart Weather Station's hub broadcasts UDP messages over port 50222 on the local network.

Messages

Rain Start Event [type = evt_precip]

		
	{
	  "serial_number": "SK-00008453",
	  "type":"evt_precip",
	  "hub_sn": "HB-00000001",
	  "evt":[1493322445]
	}

	

Evt Value Layout

Index	Field	Units
0	Time Epoch	Seconds

Lightning Strike Event [type = evt_strike]

		
	{
	  "serial_number": "AR-00004049",
	  "type":"evt_strike",
	  "hub_sn": "HB-00000001",
	  "evt":[1493322445,27,3848]
	}


	

Evt Value Layout

Index	Field	Units
0	Time Epoch	Seconds
1	Distance	km
2	Energy

Rapid Wind [type = rapid_wind]

		
	{
	  "serial_number": "SK-00008453",
	  "type":"rapid_wind",
	  "hub_sn": "HB-00000001",
	  "ob":[1493322445,2.3,128]
	}


	

Ob Value Layout

Index	Field	Units
0	Time Epoch	Seconds
1	Wind Speed	mps
2	Wind Direction	Degrees

Observation (AIR) [type = obs_air]

		
	{
	  "serial_number": "AR-00004049",
	  "type":"obs_air",
	  "hub_sn": "HB-00000001",
	  "obs":[[1493164835,835.0,10.0,45,0,0,3.46,1]],
	  "firmware_revision": 17
	}


	

Observation Value Layout

Index	Field	Units
0	Time Epoch	Seconds
1	Station Pressure	MB
2	Air Temperature	C
3	Relative Humidity	%
4	Lightning Strike Count
5	Lightning Strike Avg Distance	km
6	Battery
7	Report Interval	Minutes

Observation (Sky) [type = obs_sky]

		
	{
	  "serial_number": "SK-00008453",
	  "type":"obs_sky",
	  "hub_sn": "HB-00000001",
	  "obs":[[1493321340,9000,10,0.0,2.6,4.6,7.4,187,3.12,1,130,null,0,3]],
	  "firmware_revision": 29
	}


	

Observation Value Layout

Index	Field	Units
0	Time Epoch	Seconds
1	Illuminance	Lux
2	UV	Index
3	Rain amount over previous minute	mm
4	Wind Lull (minimum 3 second sample)	m/s
5	Wind Avg (average over report interval)	m/s
6	Wind Gust (maximum 3 second sample)	m/s
7	Wind Direction	Degrees
8	Battery	Volts
9	Report Interval	Minutes
10	Solar Radiation	W/m^2
11	Local Day Rain Accumulation	mm
12	Precipitation Type	0 = none, 1 = rain, 2 = hail
13	Wind Sample Interval	seconds

Observation (Tempest) [type = obs_st]

		
    {
        "serial_number": "ST-00000512",
        "type": "obs_st",
        "hub_sn": "HB-00013030",
        "obs": [
            [1588948614,0.18,0.22,0.27,144,6,1017.57,22.37,50.26,328,0.03,3,0.000000,0,0,0,2.410,1]
        ],
        "firmware_revision": 129
    }

	

Observation Value Layout

Index	Field	Units
0	Time Epoch	Seconds
1	Wind Lull (minimum 3 second sample)	m/s
2	Wind Avg (average over report interval)	m/s
3	Wind Gust (maximum 3 second sample)	m/s
4	Wind Direction	Degrees
5	Wind Sample Interval	seconds
6	Station Pressure	MB
7	Air Temperature	C
8	Relative Humidity	%
9	Illuminance	Lux
10	UV	Index
11	Solar Radiation	W/m^2
12	Rain amount over previous minute	mm
13	Precipitation Type	0 = none, 1 = rain, 2 = hail, 3 = rain + hail (experimental)
14	Lightning Strike Avg Distance	km
15	Lightning Strike Count
16	Battery	Volts
17	Report Interval	Minutes

Status (device) [type = device_status]

	{
	  "serial_number": "AR-00004049",
	  "type": "device_status",
	  "hub_sn": "HB-00000001",
	  "timestamp": 1510855923,
	  "uptime": 2189,
	  "voltage": 3.50,
	  "firmware_revision": 17,
	  "rssi": -17,
	  "hub_rssi": -87,
	  "sensor_status": 0,
	  "debug": 0
	}

Sensor Status (sensor_status) is a set of bit flags, encoded in a single decimal value, each bit represents the following

Binary Value	Applies to device	Status description
0b000000000	All	Sensors OK
0b000000001	AIR, Tempest	lightning failed
0b000000010	AIR, Tempest	lightning noise
0b000000100	AIR, Tempest	lightning disturber
0b000001000	AIR, Tempest	pressure failed
0b000010000	AIR, Tempest	temperature failed
0b000100000	AIR, Tempest	rh failed
0b001000000	SKY, Tempest	wind failed
0b010000000	SKY, Tempest	precip failed
0b100000000	SKY, Tempest	light/uv failed

any bits above 0b100000000 are reserved for internal use and should be ignored

debug

Value	Description
0	Debugging is disabled
1	Debugging is enabled

Status (hub) [type = hub_status]

	{
	  "serial_number":"HB-00000001",
	  "type":"hub_status",
	  "firmware_revision":"35",
	  "uptime":1670133,
	  "rssi":-62,
	  "timestamp":1495724691,
	  "reset_flags": "BOR,PIN,POR",
	  "seq": 48,
	  "fs": [1, 0, 15675411, 524288],
          "radio_stats": [2, 1, 0, 3, 2839],
          "mqtt_stats": [1, 0]
	}

Reset Flag Values

Value	Description
BOR	Brownout reset
PIN	PIN reset
POR	Power reset
SFT	Software reset
WDG	Watchdog reset
WWD	Window watchdog reset
LPW	Low-power reset

fs

For internal use.

radio_stats

Index	Field
0	Version
1	Reboot Count
2	I2C Bus Error Count
3	Radio Status (0 = Radio Off, 1 = Radio On, 3 = Radio Active)
4	Radio Network ID

mqtt_stats

For internal use.